From mboxrd@z Thu Jan  1 00:00:00 1970
From: Guenter Roeck <linux@roeck-us.net>
Subject: Re: [PATCH 08/11] usb: Add USB subsystem notifications [ver #7]
Date: Tue, 3 Sep 2019 09:12:02 -0700
Message-ID: <20190903161202.GB22754@roeck-us.net>
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To: David Howells <dhowells@redhat.com>
Cc: viro@zeniv.linux.org.uk, Casey Schaufler <casey@schaufler-ca.com>, Stephen Smalley <sds@tycho.nsa.gov>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, nicolas.dichtel@6wind.com, raven@themaw.net, Christian Brauner <christian@brauner.io>, keyrings@vger.kernel.org, linux-usb@vger.kernel.org, linux-security-module@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
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On Tue, Sep 03, 2019 at 05:07:47PM +0100, David Howells wrote:
> Guenter Roeck <linux@roeck-us.net> wrote:
> 
> > This added call to usbdev_remove() results in a crash when running
> > the qemu "tosa" emulation. Removing the call fixes the problem.
> 
> Yeah - I'm going to drop the bus notification messages for now.
> 
It is not the bus notification itself causing problems. It is the
call to usbdev_remove().

Guenter